The above Royal Mail Medical Discoveries stamps were issued on 27 September 1994 by Royal Mail and feature the following stamp designs:
25p Ultrasonic Imaging; 30p Electron Microscopy; 35p Magnetic Resonance Imaging; 41p Computed Tomography. The The Travelling Doctor first day cover with the
London SE1, Florence Nightingale,
Special Handstamp
postmark
has been produced by Pres. Philatelic Services
and features these stamps which can make a very collectible and lovely gift.